I do know that no one can predict the markets. However, one can form an educated opinion about the short-term (i.e., 30-45 days) directional bias (i.e., bullish, neutral, or bearish) of the markets (e.g., S&P 500).
To form the opinion for the S&P 500, one may use, for example, simple or exponential moving averages.
Is there a way to form the opinion for the S&P 500 using the futures markets? How is it done?